mtd: bcm47xxnflash: register this as normal driver

When platform_driver_probe() is used and no device is registered for
this driver -ENODEV is returned and and error message is shown. Not all
BCM47xx SoC have a nand flash chip controller and chip and for them an
error message was shown.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

drivers/mtd/nand/bcm47xxnflash/main.c

@@ -77,6 +77,7 @@ static int bcm47xxnflash_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver bcm47xxnflash_driver = {
+	.probe	= bcm47xxnflash_probe,
 	.remove = bcm47xxnflash_remove,
 	.driver = {
 		.name = "bcma_nflash",
@@ -88,11 +89,7 @@ static int __init bcm47xxnflash_init(void)
 {
 	int err;
 
-	/*
-	 * Platform device "bcma_nflash" exists on SoCs and is registered very
-	 * early, it won't be added during runtime (use platform_driver_probe).
-	 */
-	err = platform_driver_probe(&bcm47xxnflash_driver, bcm47xxnflash_probe);
+	err = platform_driver_register(&bcm47xxnflash_driver);
 	if (err)
 		pr_err("Failed to register bcm47xx nand flash driver: %d\n",
 		       err);